JSFiddle - React, Tailwind, and code Playground

HTML

<html>   
<head>
</head>
<body>  
    
<a href="#" class="packeta-selector-open">Choose pickup point</a>

<div class="packeta-selector-branch-name"></div>
<div class="packeta-selector-branch-id"></div>
<input type="text" class="packeta-selector-branch-id"></div>

 <script src="https://widget.packeta.com/www/js/packetaWidget.js" data-api-key="61a07521d27f2c32"></script>

</body> 
</html>

JavaScript

$('.packeta-selector-branch-id').on('change', function () { alert('helo'); })